Vice President Lyndon B. Johnson automatically assumed Choosing the Presidency upon Kennedy 's death Death .

In response Response to the perceived Know aggression Attack of Communist forces Causation in Southeast Asia , the United States Congress passed Motion_directional the Tonkin Gulf Resolution which enabled Preventing_or_letting U.S. President Lyndon B. Johnson to deploy Arranging conventional military forces in the region to prevent Preventing_or_letting further attacks Attack by the North Vietnamese .

The circumstances of his death Death became Becoming a matter of dispute Quarreling because at the time he died Duggan was attending Participation a youth `` cadre '' school organised Arranging by the LaRouche movement , an international network led by the American political activist Lyndon LaRouche .

According to political historians such as Barbara Cruikshank , `` the poor '' did not particularly conceive of themselves as a unified group until President Lyndon Johnson 's War on Poverty ( declared Expressing_publicly in 1964 ) identified Check them as such .

In response to the Gulf of Tonkin Incident when the destroyers and of the United States Navy engaged Participation North Vietnamese ships , sustaining light damage as they gathered Come_together electronic intelligence while in the international waters of the Gulf of Tonkin , U.S. President Lyndon B. Johnson ordered Request Operation `` Pierce Arrow '' which was conducted Action on 5 August 1964 .

The bombing prompted debate Quarreling within the administration of United States President Lyndon B. Johnson .

In response , the Gulf of Tonkin Resolution gave Giving President Lyndon B. Johnson broad authorization to increase U.S. military presence , deploying ground combat units for the first time and increasing troop levels to 184,000 .